Materials and their Properties
3 properties of wood
What is soft, biodegradable, renewable, rough, smooth
*not magnetic
*cannot be heated and reused
1st step in the Engineering Process
What is define a problem?
*ask questions
*observer
Trees make ____
What is paper?
Sap makes _____.
What is rubber?
3 properties of plastic
What is hard, smooth, can be heated and reused?
*not biodegradable
*not renewable
*not magnetic
2nd step in the engineering process
What is brainstorm?
Crude oil makes _____
What is plastic?
3 properties of aluminum.
What is hard, smooth, can be heated and reused?
*not biodergradable, not renewable, not magnetic
3 properties of metal
What is hard, rough, smooth, magnetic, can be heated and reused?
*not biodegradable
*not renewable
3rd step in the engineering process
What is plan and make a model?
*design
*build
Cotton makes _____
What is fabric?
NOT used to make windows.
What is metal or aluminum?
3 properties of glass
What is hard, smooth, can be heated and resused?
*not biodegradable
*not renewable
*not magnetic
4th step in the engineering process
What is test and improve?
*fail
Sand makes _____.
What is glass?
NOT used for making legos.
What is paper or fabric?
*bendable and would collapse if stacked
3 properties of cotton
What is soft, biodegradable, renewable, rough?
*not magnetic
*cannot be heated and reused
5th step in the engineering process
What is communicate?
*share
Iron Ore makes _____.
What is metal?
What is 3 arrows in the shape of a triangle?